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Minimum Effective Dose of Ropivacaine for Spinal Anesthesia for Cesarean Delivery

NCT02565303 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2018-03-01

No results posted yet for this study

Summary

Ropivacaine is one of commonly used anesthetics for spinal anesthesia. Usually L2-3 or L3-4 intervertebral space is chosen for spinal anesthesia. The efficacy of ropivacaine injected into subarachnoid space depends on the given dose and the chosen intervertebral space. Appropriate dose could satisfy the requirement of operation and reduce incidence of the adverse reaction. But it is not certain about the minimum effective dose of ropivacaine in cesarean section through the two intervertebral spaces, respectively. This study is being conducted to find the minimum effective doses for L2-3 and L3-4 spinal anesthesia in cesarean section.

Conditions

  • Spinal Anesthesia

Interventions

PROCEDURE

Intervertebral space

DRUG

Ropivacaine

The initial dose of ropivacaine is chosen as 12 mg in L2-3 group and 15 mg in L3-4 group with the volume of 3 mL in both groups. The testing interval is 0.5 mg with subsequent doses being determined by the outcome of the previous injection in the same group.If the previous response is ineffective, the next patient will receive 0.5 mg more than the last patient. If the response of the previous patient is effective, the next patient decrease 0.5mg.

Sponsors & Collaborators

  • Shanghai 6th People's Hospital

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
20 Years
Max Age
35 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2015-09-30
Primary Completion
2017-05-31
Completion
2017-06-30

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02565303 on ClinicalTrials.gov